Alaska Satellite Facility
Delivering Remote Sensing Data Since 1991

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Preparing Sentinel-1 GRD Data for GIS

Adapted from coursework developed by Franz J Meyer, Ph.D., Alaska Satellite Facility and UCLA’s Technology Sandbox


This recipe is designed to help users project and geocode Sentinel-1 Ground Range Detected (GRD) data and export them into a GIS-ready format using GDAL software. Geocoding is an important step because it allows SAR data to be compared or integrated with other types of data (satellite images, maps, etc.). Geocoding an image consists of introducing spatial shifts in the original image in order to have a correspondance between the position of points on the final image and their location in a given cartographic projection.

This Sentinel-1 image capturing the Mississippi River has been processed into
a GIS-compatible format and imported for ease of use. Credit: Copernicus
Sentinel data 2017, processed by ESA.

Get SAR Data

Get SAR Data

Select and download SAR data online using Vertex.

Use the ASF API for downloading SAR data via a command line.